Zhang Peng, Watanabe Kunio, Li Baoguo, Tan Chia L
Primate Research Institute, Kyoto University, Inuyama, Aichi, 484-8506, Japan.
Primates. 2006 Oct;47(4):374-82. doi: 10.1007/s10329-006-0178-8. Epub 2006 Apr 20.
Sichuan snub-nosed monkeys were observed for 197 days from 2000 to 2003 in the Qinling Mountains, Central China. The study group was provisioned in 2001 allowing detailed observations of social organization based on individual identification. The group was composed of 45-82 monkeys, all of which belonged to one of 6-8 one-male units (OMU) that foraged to form one big group. The average unit size was 9.0+/-2.3, 8+/-1.5 in the winter and 11.1+/-2.0 in the spring. Immigration or emigration of one-male units to or from the foraging group was observed, as was migration of individuals in and out of OMU, especially for by subadult females and juveniles. Group size therefore tended to fluctuate with the number of OMU and the number of young monkeys present in the group. The OMU in the study area were smaller than those in Shennongjia area. The factors influencing the size of these OMU and the entire group are discussed.
2000年至2003年期间，在中国中部的秦岭地区对川金丝猴进行了197天的观察。研究组在2001年得到了食物供应，从而能够基于个体识别对社会组织进行详细观察。该群体由45至82只猴子组成，它们全部属于6至8个单雄单元（OMU）中的一个，这些单雄单元觅食时会形成一个大群体。平均单元规模为9.0±2.3只，冬季为8±1.5只，春季为11.1±2.0只。观察到有单雄单元迁入或迁出觅食群体的情况，也有个体进出单雄单元的迁移情况，尤其是亚成年雌性和幼猴。因此，群体规模往往会随着单雄单元数量以及群体中幼猴数量的变化而波动。研究区域内的单雄单元比神农架地区的要小。文中讨论了影响这些单雄单元以及整个群体规模的因素。
